you probably have a very strong immune system
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送交者: yell 于 2008-06-25, 16:02:32:
回答: 还有,这个好像是遗传的 由 foresight 于 2008-06-25, 15:44:45:
therefore your body can fight off the bugs. But it is probably too strong (or too sensitive) and can be triggered by false alert :-))
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